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  1. #41
    Senior Member Rank = Rokusai RipleyRich's Avatar
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    Try running without the screens in.
    This will help to establish if its the drum or another part of your system.
    If the water level still rises and initiates the cleaning cycle, then you don`t have free flow on your outlet.

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  3. #42
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Agree with Rich,can you open the drum bypass plates then if it works ok then it's the screen.
    John

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  5. #43
    Quote Originally Posted by RipleyRich View Post
    Try running without the screens in.
    This will help to establish if its the drum or another part of your system.
    If the water level still rises and initiates the cleaning cycle, then you don`t have free flow on your outlet.
    How would one run it without the screens in?


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  7. #44
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Should be a bung, or two, that allows the water to bypass the screen if removed

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  9. #45
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    If you look down the partition between the dirty side and the clean there should be a plate which you can remove and let's the dirty water go straight to the clean side.
    John

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  11. #46
    Ok, so update.

    I drained the whole filter, took the mats outs, checked the holes that let the clean water through - they are all clear.

    I turned the pump back on (draco off) and the water filled within the drum itself and started to dump it.

    It has to be the mesh that’s not letting any water through it.

    Now, the filter has been off for a few months (for other reasons in my initial post), my thinking is that the water is sooooo dirty that the drum cleaner can’t keep up with cleaning the mesh that it times out (when it cleans it doesn’t dump water (except what’s used to clean the mesh)).
    So, just started draining the pond and going to fill it up again, hopefully that will get rid of most of the algae that’s in the water itself and at least give the filter a chance to do something.

    Not sure if that makes sense.


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  13. #47
    Senior Member Rank = Yonsai MikeMack's Avatar
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    Check the spray bar nozzles are clean, if these have gotten dirty it won’t be letting enough water through to clean the screen properly. Also, I’m sure you can increase the clean time on the control panel.

    In theory, it should completely clean with one rotation, I can’t see how the mesh is completely blocked if you’ve cleaned it with acid.

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  15. #48
    Quote Originally Posted by MikeMack View Post
    Check the spray bar nozzles are clean, if these have gotten dirty it won’t be letting enough water through to clean the screen properly. Also, I’m sure you can increase the clean time on the control panel.

    In theory, it should completely clean with one rotation, I can’t see how the mesh is completely blocked if you’ve cleaned it with acid.
    It is cleaning it with one rotation but the water is so dirty that it gets clogged up again....that’s my thinking.


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  17. #49
    Senior Member Rank = Yonsai MikeMack's Avatar
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    So how long after a clean does it take to block back up and start dumping water again?

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  19. #50
    Quote Originally Posted by MikeMack View Post
    So how long after a clean does it take to block back up and start dumping water again?
    10 seconds, if that.


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  21. #51
    Senior Member Rank = Yonsai MikeMack's Avatar
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    What lph pump is feeding the drum?

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  23. #52
    Quote Originally Posted by MikeMack View Post
    What lph pump is feeding the drum?
    No idea but this issue has only started recently. Been working fine for the best part of a year.



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  25. #53
    Give you an idea of the water quality at the moment....I do believe it’s just the mesh not being able to keep up with the cleaning due to the 4min time out.




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  27. #54
    Senior Member Rank = Yonsai MikeMack's Avatar
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    I do think it could be a combination of a couple of things...

    Clean cycle length, try increasing it.
    Float level height. Check how high above water level it is immediately after a clean.
    Pumps to powerful, need to check what lph.

    As they age the screens do get a build up on them which reduces their flow rate.

    Pretty sure the flow rate on the drop ins pump fed is about 12k, looking at the size of the pond I’d imagine the pump is a lot bigger than that.

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  29. #55
    Quote Originally Posted by MikeMack View Post
    I do think it could be a combination of a couple of things...

    Clean cycle length, try increasing it.
    Float level height. Check how high above water level it is immediately after a clean.
    Pumps to powerful, need to check what lph.

    As they age the screens do get a build up on them which reduces their flow rate.

    Pretty sure the flow rate on the drop ins pump fed is about 12k, looking at the size of the pond I’d imagine the pump is a lot bigger than that.
    I did increase the clean cycle but that made difference. Yes, it ran for longer but timed out and then started to dump water.

    Float level - can’t check this as it’s in the drum on the evolve (unlike draco boxes that have them in the corner).

    Pump isn’t too powerful as it’s been running fine for many months. In theory, it should get less powerful as it clogs up with muck over time.

    I can’t even get hold the supplier these days :-(


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  30. #56
    Senior Member Rank = Yonsai MikeMack's Avatar
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    right ok.

    Get a professional in.

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  32. #57
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    It seems to me as you said the filter has been off for a while that there is a load of crap in your pond.
    No offence meant but your pond is as green as hell and I think your mesh is blocking up all the time.
    You need UV on, if you can slow the pump down a bit as to let the drum do its job it's working overtime dealing with the work load.
    Drums need to be on all the time even in the winter if turned off you are back to square one.
    John

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  34. #58
    Quote Originally Posted by john1 View Post
    It seems to me as you said the filter has been off for a while that there is a load of crap in your pond.
    No offence meant but your pond is as green as hell and I think your mesh is blocking up all the time.
    You need UV on, if you can slow the pump down a bit as to let the drum do its job it's working overtime dealing with the work load.
    Drums need to be on all the time even in the winter if turned off you are back to square one.
    Yes - the filter is supposed to be on but like my first post, one thing after another failed on the evolve system which meant it being off since April. Not our choice.

    Looking for alternatives to get rid of the green....might buy a cheapo drum and fill it up with floss and pump through that for a while.


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  36. #59
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Sorry Maj I havnt read through your thread properly.

    So have I presume the original problems havnt been resolved and you are left with a load of green in your pond?
    John

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  38. #60
    Quote Originally Posted by john1 View Post
    Sorry Maj I havnt read through your thread properly.

    So have I presume the original problems havnt been resolved and you are left with a load of green in your pond?
    Original problems have been solved now. But I’m left with a green pond that needs dealing with.

    Anyone know what the best way to clean the algae is?

    Options are
    * get another box filter and stack it with filter floss
    * take the draco out of the evolve and fill the first chamber with floss
    * bypass the draco and leave it the jap mats to filter the algae




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